See network topology.

In optical fibers, the absorption of electromagnetic waves, including the near-infrared, due to the presence of trapped hydroxyl ions remaining from water as a contaminant.
Note: The hydroxyl (OH-) ion can penetrate glass during or after product fabrication, resulting in significant attenuation of discrete optical wavelengths, e.g., approximately
1. 3 m, used for communications via optical fibers.

An application of SGML (Standard Generalized Markup Language [ISO 8879]) implemented in conjunction with the World Wide Web to facilitate the electronic exchange and display of simple documents using the Internet.

1. A software function that (a) is manifest to the user as displayed, selectable words or icons, and (b) allows viewers of an HTML document to navigate thereby to another HTML document or file.
2. The link created, as in 1.

Computer-addressable files that contain pointers for linking to multimedia information, such as text, graphics, video, or audio in the same or other documents.
Note: The use of hypertext links is known as navigating.

The system of coding that is used to create or navigate hypermedia in a nonsequential manner.

In the World Wide Web, a protocol that facilitates the transfer of hypertext-based files between local and remote systems.
Also, see yyHTTP.

Abbreviation for hertz.

1. Interrogating-Call Session Control Function,
2. Intermediate-Call Session Control Function.

Abbreviation for interface.